Metacaulk 1200 Firestop Mastic

Metacaulk 1200 Firestop Mastic


  • Extremely flexible cure
  • Excellent dynamic movement characteristics
  • Excellent Freeze-thaw
  • STC rating 65
  • UL Classified up to 4 hrs
  • Tested to ASTM G21 standard
  • 3 year shelf life
  • Download Image Spray Group
SKU: 66379, 66527 Categories: , Tags: ,

Product Description

Metacaulk® 1200 is a single component, highly elastomeric water based firestop mastic for construction joints such as top of the wall, curtain wall perimeter, expansion,control, etc. and for general construction gaps and voids.

Metacaulk®1200 is a water based sealant that comes in two different grades. Metacaulk® 1200 mastic grade is designed for spray applications and provides a fast, economical means of installation on long joint runs.

It cures to an elastomeric membrane seal that is suitable where dynamic movement is expected. Can be applied to horizontal and vertical surfaces for interior and covered exterior application that cures to a paintable elastomeric membrane seal. Application temperature 40°F to 120°F.

Tested to ASTM E 1966 (UL2079, CAN/ULC S115, ASTM E 814 (UL 1479) & ASTM E1399



FBC™ System Compatible indicates that this product has been tested, and is monitored on an ongoing basis, to assure its chemical compatibility with Flowguard Gold®, Blazemaster® and Corzan® piping systems and products made with TempRite® Technology.

The FBC System Compatible Logo, FBC™, FlowGuard Gold®, BlazeMaster®, Corzan® and TempRite® are trademarks of Lubrizol Advanced Materials, Inc. or its affiliates.

Product Codes And Case Sizes
Product CodeSizeQuantityUPCInterleavedDimensionsCubic Feet
663795 Gal. Spray1021449663793 NA13 diax14 1.08
66527 5 Gal. Spray1021449665278 NA13 diax14 1.08